using System.Collections;
using System.IO;
using UnityEngine;

namespace RuntimeAudioClipLoader
{
    [RequireComponent(typeof(AudioSource))]
    public class DemoLoadAudioFromStreamingAssets : MonoBehaviour
    {
        public bool loadInBackground = true;
        public bool doStream = false;

        // soundcloud stream link generated with https://www.appendipity.com/get-mp3-links-soundcloud/
        public string urlToLoad = @"http://media.soundcloud.com/stream/dP7wRLjm32Eh.mp3";

        AudioSource audioSource;
        void Start()
        {
            audioSource = GetComponent<AudioSource>();
        }
        void OnGUI()
        {
            var sourceFolder = Path.Combine(Application.streamingAssetsPath, "RuntimeAudioClipLoader demo StreamingAssets");
            int num = 0;
            var files = Directory.GetFiles(sourceFolder, "*", SearchOption.AllDirectories);
            foreach(var file in files)
            {
                if (!file.EndsWith(".meta"))
                {
                    if (num > 10) break;
                    num++;
                    if (GUILayout.Button("Load: " + file.Substring(sourceFolder.Length)))
                    {
                        audioSource.clip = RuntimeAudioClipLoader.Manager.Load(file, doStream, loadInBackground);
                    }
                }
            }

            GUILayout.Space(10);

            GUILayout.Label("Url to load:");
            urlToLoad = GUILayout.TextArea(urlToLoad);
            if(GUILayout.Button("Load from url"))
            {
                StartCoroutine(DownloadClipFromUrl(urlToLoad));
            }

            GUILayout.Space(10);

            if (audioSource.clip)
            {
                GUILayout.Label("AudioClip.name: " + audioSource.clip.name);
                GUILayout.Label("AudioDataLoadState: " + RuntimeAudioClipLoader.Manager.GetAudioClipLoadState(audioSource.clip));
                GUILayout.Label("AudioClipLoadType: " + RuntimeAudioClipLoader.Manager.GetAudioClipLoadType(audioSource.clip));

                GUILayout.Label("time: " + audioSource.time + "/" + audioSource.clip.length);
                if (GUILayout.Button("Play")) audioSource.Play();
            }

            doStream = GUILayout.Toggle(doStream, "doStream (audioClip is loaded on the fly on demand, use for long one time use clips)");
            loadInBackground = GUILayout.Toggle(loadInBackground, "loadInBackground (if !doStream and loadInBackground then loading is done in own thread so it doesnt hang up caller's thread)");

            if (GUILayout.Button("Clear cache (so you can test loading times again)"))
            {
                RuntimeAudioClipLoader.Manager.ClearCache();
                audioSource.clip = null;
            }

        }


        IEnumerator DownloadClipFromUrl(string url)
        {
            // Debug.Log("loading " + url);
            WWW www = new WWW(url);
            yield return www;
            Debug.Log("loaded " + url + " got bytes:" + www.bytes.Length);
            var stream = new MemoryStream(www.bytes);
            var format = RuntimeAudioClipLoader.Manager.GetAudioFormat(url);
            if (format == AudioFormat.unknown) format = AudioFormat.mp3;
            audioSource.clip = RuntimeAudioClipLoader.Manager.Load(stream, format, url, doStream, loadInBackground);
        }
    }
}